pisssplitter Share definition Flag after sex blockage in the urethera that blocks the urine flow and sometimes enable the pisser to have a split piss stream. Im sorry I pissed on your shoe. Dude,,, it was the pisssplitter! "Not my fault" pisssplitter by JeffBay May 23, 2008 0 0 Get merch Get the pisssplitter mug. Buy Now — $32.95 See more merch